Definition

Digital Forensics can be defined as the process of preservation, identification, extraction, and documentation of computer evidence which can be used by the court of law. It is a science of finding evidence from digital media like a computer, mobile phone, server, or network. It provides the forensic team with the best techniques and tools to solve complicated digital-related cases.

Digital Forensics helps the forensic team to analyzes, inspect, identifies, and preserve the digital evidence residing on various types of electronic devices.

Digital forensic science is also a branch of forensic science that focuses on the recovery and investigation of material found in digital devices related to cybercrime. The term digital forensics was first used as a synonym for computer forensics. Since then, it has expanded to cover the investigation of any devices that can store digital data. Although the first computer crime was reported in 1978, followed by the Florida computers act, it wasn’t until the 1990s that it became a recognized term. It was only in the early 21st century that national policies on digital forensics emerged.

Types of Digital Forensics

Three types of digital forensics are:

Disk Forensics:

It deals with extracting data from storage media by searching active, modified, or deleted files.

Network Forensics:

It is a sub-branch of digital forensics. It is related to monitoring and analysis of computer network traffic to collect important information and legal evidence.

Wireless Forensics:

It is a division of network forensics. The main aim of wireless forensics is to offers the tools need to collect and analyze the data from wireless network traffic.

Database Forensics:

It is a branch of digital forensics relating to the study and examination of databases and their related metadata.

Malware Forensics:

This branch deals with the identification of malicious code, to study their payload, viruses, worms, etc.

Email Forensics

Deals with recovery and analysis of emails, including deleted emails, calendars, and contacts.

Memory Forensics:

It deals with collecting data from system memory (system registers, cache, RAM) in raw form and then carving the data from Raw dump.

Mobile Phone Forensics:

It mainly deals with the examination and analysis of mobile devices. It helps to retrieve phone and SIM contacts, call logs, incoming, and outgoing SMS/MMS, Audio, videos, etc.

Challenges faced by Digital Forensic Investigators

Here, are major challenges faced by the Digital Forensic: investigators

• The increase of PC’s and extensive use of internet access
• Easy availability of hacking tools
• Lack of physical evidence makes prosecution difficult.
• The large amount of storage space into Terabytes that makes this investigation job difficult.
• Any technological changes require an upgrade or changes to solutions.

BENEFITS OF DIGITAL FORENSICS

The underlisted are the benefits of digital forensics

• To ensure the integrity of the computer system.
• To produce evidence in the court, which can lead to the punishment of the culprit.
• It helps the companies to capture important information if their computer systems or networks are compromised.
• Efficiently tracks down cybercriminals from anywhere in the world.
• Helps to protect the organization’s money and valuable time.
• Allows to extract, process, and interpret the factual evidence, so it proves the cybercriminal action’s in the court.

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